Global “atmospheric bridge” links up weather at the planet’s two poles, new study finds

Sep 13 02:09 2017 Print This Article

A 30,000 year-old kauri tree in New Zealand is shedding light on global temperature changes, with researchers concluding that a newly identified phenomenon, a 20,000 km-long “atmospheric bridge,” is responsible for connecting melting sea ice in the Antarctic with a quick spike in temperatures in the Arctic during the last ice age. The findings speak to the links between the world’s climate systems, say researchers, particularly with reference to the role played by Antarctic weather in influencing temperatures around the globe.

Climate scientists have known for some time that the Arctic and Antarctic have a long-distance weather relationship with each other, exemplified by what’s called the “bipolar seesaw.” A rapid warming of the climate at one end that produces a resulting cooling at the other, which up until now has been explained by changes in the North Atlantic that cause deep ocean currents (the planet’s “conveyor belt”) to shut down.

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Cantech Letter

Founded in 2008 by Nick Waddell, Cantech Letter is an online magazine focusing on Canadian technology. The site has grown into one of the most popular and respected financial sites in Canada, and was described by Canadian Business Magazine as “one of Canada’s premier technology newsletters”. Waddell, who is Senior Editor, is routinely called on by the mainstream media for perspective on Canadian technology, and has been featured on BNN, CTV News Channel, and the CBC program “The Lang and O’Leary Exchange” in addition to mainstream print media such as The Guardian, The International Business Times, The Globe and Mail, Macleans, The Waterloo Record , Canadian Business, Slate, and Business Insider. You can email Nick at nick@cantechletter.com Cantech Letter is focused on those companies listed on the TSX and TSXV Technology, Cleantech and Life Sciences Sectors. Each year we present the Cantech Letter Awards, which honor Canada’s Top Technology Stock and Top Technology Stock Executive.

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